參數(shù)資料
型號: L6917BD
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO28
封裝: SO-28
文件頁數(shù): 20/33頁
文件大小: 631K
代理商: L6917BD
Obsolete
Product(s)
- Obsolete
Product(s)
27/33
L6917B
CPU Power Supply: 12VIN - VRM 9.0 - 50A thermal
Figure 23 shows the device in a high current CPU core power supply solution.
The output voltage can be adjusted with binary step from 1.100V to 1.850V following VRM 9.0 specifications.
The demo board assembled with the following part list is capable to deliver up to 50A in open air without any
kind of airflow. Peak current can reach 60A without any limitations. For higher DC current, to avoid mosfet
change, airflow or heat sink are required.
Figure 23. CPU Power Supply Schematic
Part List
R1
10k
SMD 0805
R2, R9
Not Mounted
SMD 0805
R3, R4, R5, R6
3.3k
1%
SMD 0805
R7
3.6k
1%
SMD 0805
R8
3.3k
SMD 0805
R10
82
SMD 0805
R12 to R15
2.2
SMD 0805
R16, R17, R18
0
SMD 0805
Ra
1k
SMD 0805
Rosc
1.3M
1%
SMD 0805
C1
Not Mounted
SMD 0805
PGOOD
PGND
PGNDS2
ISEN2
LGATE2
VSEN
FB
PHASE2
UGATE2
BOOT2
VCC
COMP
SGND
OSC / INH
VID0
VID1
VID2
VID3
VID4
PGNDS1
ISEN1
LGATE1
PHASE1
UGATE1
BOOT1
VCCDR
6
24
25
26
27
16
15
2
5
4
3
1
13
14
22
21
20
18
19
7
28
23
10
9
8
11
12
FBR
FBG
17
C1
R7
R8
C2
R4
R3
Q3
Q4
C3
L2
C7
R10
D3
C6
C11..C13
C14,
C23
R1
JP3
R2
S1
S0
S3
S2
S4
R5
R6
Q1
L1
Q2
C4
D4
C5
Vin
GNDin
GNDCORE
VoutCORE
PGOOD
FBG
FBR
U1
L6917B
DZ1
C8
JP2
JP1
R13
R15
R12
R14
C9,C10
R9
R18
D1
R17
R16
Q1a
Q3a
D2
R19
R20
JP5
JP4
Vcc
GNDcc
JP6
To Vcc
Rosc
Ra
Ca
相關(guān)PDF資料
PDF描述
L6917BDTR SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO28
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